WO2023246539A1 - 旋磨装置 - Google Patents

旋磨装置 Download PDF

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Publication number
WO2023246539A1
WO2023246539A1 PCT/CN2023/099612 CN2023099612W WO2023246539A1 WO 2023246539 A1 WO2023246539 A1 WO 2023246539A1 CN 2023099612 W CN2023099612 W CN 2023099612W WO 2023246539 A1 WO2023246539 A1 WO 2023246539A1
Authority
WO
WIPO (PCT)
Prior art keywords
liquid
rotational atherectomy
rotational
drive shaft
pump
Prior art date
Application number
PCT/CN2023/099612
Other languages
English (en)
French (fr)
Inventor
季晓飞
常兆华
岳斌
姚映忠
刘沛丰
Original Assignee
上海微创旋律医疗科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 上海微创旋律医疗科技有限公司 filed Critical 上海微创旋律医疗科技有限公司
Publication of WO2023246539A1 publication Critical patent/WO2023246539A1/zh

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/32—Surgical cutting instruments
    • A61B17/3205—Excision instruments
    • A61B17/3207—Atherectomy devices working by cutting or abrading; Similar devices specially adapted for non-vascular obstructions
    • A61B17/320758—Atherectomy devices working by cutting or abrading; Similar devices specially adapted for non-vascular obstructions with a rotating cutting instrument, e.g. motor driven
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B17/00—Surgical instruments, devices or methods, e.g. tourniquets
    • A61B17/32—Surgical cutting instruments
    • A61B2017/320004—Surgical cutting instruments abrasive
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2217/00—General characteristics of surgical instruments
    • A61B2217/002—Auxiliary appliance
    • A61B2217/005—Auxiliary appliance with suction drainage system
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2217/00—General characteristics of surgical instruments
    • A61B2217/002—Auxiliary appliance
    • A61B2217/007—Auxiliary appliance with irrigation system

Definitions

  • the present application relates to the technical field of medical devices, and in particular to a rotational atherectomy device.
  • Atherosclerotic plaques are generally located in the vasculature of coronary arteries or peripheral arteries and may have different characteristics depending on the texture of the plaque. For severe calcified lesions, it is necessary to use an atherosclerosis resection device for pretreatment. The principle is to use a rotational atherectomy device to rotate and grind the vascular lesions at high speed to remove calcified or fibrotic arteriosclerotic plaques, open blood vessels blocked by plaques, and obtain The expanded smooth vascular lumen facilitates subsequent stent implantation.
  • the rotational atherectomy catheter When the rotational atherectomy device performs a rotational atherectomy operation, the rotational atherectomy catheter mainly drives the rotational atherectomy head to rotate at high speed through the drive shaft, pushing forward to contact and grind to remove the lesion. Since heat is generated during grinding lesions, in order to reduce thermal damage to vascular tissue and blood, it is necessary to infuse coolant (such as saline) during the rotational grinding process to cool and wash away the generated wear particles.
  • coolant such as saline
  • the related art rotational atherectomy device mainly transfers the coolant in the liquid storage bag to the distal end of the catheter through a pressurized bag or an infusion pump to cool and flush the generated wear particles, but it cannot be used according to the actual rotational atherectomy device. According to the grinding conditions, the coolant injection flow rate can be adjusted promptly and effectively.
  • a rotary grinding device is provided to solve the problem of being unable to adjust the perfusion flow rate of coolant in a timely and effective manner.
  • This application provides a rotational grinding device, including:
  • a driving shaft the distal end of which is connected to the rotational atherectomy assembly and used to drive the rotational atherectomy assembly parts rotate;
  • a liquid-passing pipe is sleeved on the driving shaft, and the liquid-passing pipe has a liquid-passing cavity;
  • a liquid pump component is drivingly connected to the drive shaft, and can transport liquid through the liquid passage chamber toward the distal end of the liquid passage tube driven by the drive shaft.
  • Figure 1 is a schematic structural diagram of the rotational atherectomy device of Embodiment 1;
  • Figure 2 is a schematic cross-sectional structural diagram of the rotational grinding device of Embodiment 1 at the pump liquid part;
  • Figure 3 is a schematic structural diagram of an embodiment of the pump fluid component of the rotational trituration device of Embodiment 1;
  • Figure 4 is a schematic structural diagram of the rotational atherectomy device of Embodiment 2;
  • Figure 5 is a schematic cross-sectional structural diagram of the rotational grinding device in Embodiment 2 at the pump liquid part.
  • the proximal end is the end of the medical device that is close to the operator (such as a doctor), and the distal end is the end of the medical device that is far away from the operator.
  • This application provides a rotational grinding device, including:
  • a driving shaft the distal end of which is connected to the rotational atherectomy component and used to drive the rotational atherectomy component;
  • a liquid-passing pipe is sleeved on the driving shaft, and the liquid-passing pipe has a liquid-passing cavity;
  • a liquid pump component is drivingly connected to the drive shaft, and can transport liquid through the liquid passage chamber toward the distal end of the liquid passage tube driven by the drive shaft.
  • the driving shaft passes through the liquid chamber, and the pump liquid component is coaxially disposed on the driving shaft.
  • the pump fluid component has at least one axial groove, and the axial groove forms at least one moving vane on the peripheral side of the pump fluid component, and the moving vane is used to move the When the liquid pump member rotates, the liquid is transported along the liquid passage cavity toward the distal end of the liquid passage tube.
  • the outer diameter of the moving blade gradually increases from the proximal end to the distal end.
  • the liquid passage tube includes a guide chamber spaced apart from the liquid passage chamber, the drive shaft passes through the guide chamber, and is drivingly connected to the pump fluid component through a transmission mechanism. .
  • the transmission mechanism includes a gear transmission assembly
  • the gear transmission assembly includes a driving wheel and a driven wheel that mesh with each other, the driving wheel is connected to the drive shaft, and the driven wheel is connected to the drive shaft. Pump fluid parts are connected.
  • the gear transmission assembly includes at least one intermediate gear, and the intermediate gear is meshedly disposed between the driving wheel and the driven wheel.
  • the transmission ratio between the driving wheel and the driven wheel is greater than 1.
  • the transmission ratio between the driving wheel and the driven wheel is 1.1:1 to 3:1.
  • the transmission mechanism includes a meshing turbine and a worm
  • the worm is coaxially connected to the drive shaft
  • the pump fluid component includes a plurality of blades
  • the plurality of blades are connected to the The turbine drives the plurality of blades to rotate when the worm drives the turbine to rotate.
  • the surface of the blade is arranged at an angle to the axial direction of the pump fluid component.
  • the axis of rotation of the pump member is parallel to and spaced apart from the drive shaft.
  • the rotational atherectomy device includes a liquid inlet pipeline, and the liquid inlet pipeline is connected with the liquid passage chamber.
  • the rotational atherectomy device includes a driving assembly, which is connected to the proximal end of the driving shaft and is used to drive the driving shaft to rotate.
  • the drive component is an electric motor or a pneumatic motor.
  • the rotational atherectomy device includes a guidewire, the guidewire is passed through the drive shaft and the rotational atherectomy assembly, and the drive shaft and the rotational atherectomy assembly can move along the axial direction of the guidewire. Moveable and capable of rotational movement around the guidewire.
  • the rotational atherectomy assembly includes a rotational atherectomy head, and at least part of the surface of the rotational atherectomy head is covered with abrasive particles.
  • the abrasive particles include diamond particles.
  • the rotational atherectomy device 10 includes a rotational atherectomy component 11 , a drive shaft 12 , a guide wire 13 , a liquid pipe 14 , a pump liquid component 15 , a liquid inlet pipeline 16 and a drive assembly 17 .
  • the rotational atherectomy component 11 is connected to the distal end of the drive shaft 12.
  • the guide wire 13 passes through the rotational atherectomy component 11 and the drive shaft 12.
  • the drive shaft 12 and the rotational atherectomy component 11 can move axially along the guide wire 13, and the drive shaft 12
  • the rotational atherectomy assembly 11 can rotate around the guide wire 13 .
  • the driving shaft 12 and the rotational atherectomy assembly 11 can be operated to move forward and backward along the guide wire 13 , wherein axial movement refers to moving toward the distal end and the proximal end along the guide wire 13 , so as to rotate the position where the lumen (such as blood vessel) needs to be rotated. Grind to clear the lumen.
  • the rotational grinding assembly 11 includes a rotational grinding head, wherein at least part of the surface of the rotational grinding head is covered with abrasive particles, including but not limited to diamond particles, so that when the rotational grinding head rotates with the drive shaft 12, Able to obtain good rotary grinding effect.
  • abrasive particles including but not limited to diamond particles
  • the guide wire 13 is not a necessary structure and can be omitted.
  • the liquid inlet pipe 16 is used to input cooling liquid, including but not limited to brine.
  • the coolant as salt water as an example.
  • the liquid inlet pipe 16 is connected with the liquid pipe 14, and the saline is transported to the distal end through the liquid cavity 141 of the liquid pipe 14 to wash away the particles produced by the rotational grinding and take away the heat generated by the rotational grinding, so as to reduce the rotational grinding component 11
  • the temperature rise caused by rotation causes thermal damage to vascular tissue and blood, avoiding complications such as slow blood flow/no reflow.
  • the liquid pump member 15 is a component capable of pumping liquid. Specifically, the liquid pump member 15 is drivingly connected to the drive shaft 12 , and the liquid pump member 15 can rotate driven by the drive shaft 12 to achieve pumping liquid.
  • the driving assembly 17 is connected to the driving shaft 12. Driven by the driving assembly 17, the driving shaft 12 drives the pump liquid component 15 and the rotational grinding assembly 11 to rotate.
  • the pump fluid component 15 is coaxially disposed on the drive shaft 12 , so that when the drive shaft 12 rotates driven by the drive assembly 17 , the pump fluid component 15 will rotate together with the drive shaft 12 . Understandably, the flow of saline water is controlled by controlling the rotational speed of the pump fluid component 15. Since the power source of the pump fluid component 15 and the drive shaft 12 is both the drive assembly 17, the rotational microsurgery device 10 can realize the rotation speed of the pump fluid component 15 along with the rotation speed of the drive shaft 12.
  • the changes alter the amount of saline delivered to the distal end of rotational atherectomy device 10.
  • the pump fluid component 15 since the pump fluid component 15 is coaxially arranged on the drive shaft 12, as the rotation speed of the drive shaft 12 increases, the pump fluid component 15 increases the amount of saline perfused by the distal transmission, thereby increasing the saline flow rate to flush the rotary milling machine.
  • the wear particles generated during the rotational atherectomy of component 11 can also reduce the temperature rise caused by the rotation of rotational atherectomy component 11 and the thermal damage to vascular tissue and blood, thus avoiding complications such as slow blood flow/no reflow.
  • the pump liquid component 15 is coaxially disposed on the drive shaft 12 and is rotatably disposed in the liquid pipe 14 , the outer wall of the drive shaft 12 and the inner wall of the liquid pipe 14 are in contact with each other.
  • a liquid-passing chamber 141 is formed between them, so that when the driving shaft 12 drives the pump liquid component 15 to rotate, the liquid-passing chamber 141 can transport the salt water to the far end of the rotational grinding device 10 to wash away the abrasive debris generated by the rotational grinding.
  • the rotation axis of the pump fluid component 15 coincides with the guide wire 13.
  • the pump fluid component 15 coincides with the guide wire 13.
  • the pump fluid component 15 15 rotates around the guide wire 13.
  • the rotation axis of the pump fluid component 15 is the axis around which the fluid pump component 15 rotates.
  • the liquid pipe 14 may be a single pipe member, or may be a combination of multiple pipe members.
  • the diameter of the portion of the liquid pipe 14 corresponding to the pump fluid component 15 can be set larger than other parts to facilitate the installation of the pump fluid component 15 .
  • the liquid pump member 15 has at least one axial groove 151 , and the axial groove 151 forms at least one moving vane 152 on the peripheral side of the liquid pump member 15 .
  • the moving blades 152 push the salt water to be transported along the liquid passage chamber 141 toward the distal end of the liquid passage pipe 14 , and finally the saline water is output from the distal end of the liquid passage pipe 14 .
  • the distal end of the liquid pipe 14 is located at the rotational grinding position. To be precise, the abrasive debris generated during the rotational grinding process of the rotational grinding assembly 11 can be washed by the salt water output by the liquid pipe 14 .
  • the outer diameter of the moving blade 152 gradually increases from the proximal end to the distal end.
  • salt water can flow through the liquid passage chamber 141 and pass through the surface of the moving blade 152.
  • the distal end of the pump member 15 has a high flow rate where the liquid pressure is low, and the proximal end of the pump member 15 where the flow rate is low has a high liquid pressure. Under the action of the pressure difference, the liquid accelerates from the proximal end to the distal end. Therefore, the use of this pump liquid component 15 can improve the delivery performance of salt water, which is beneficial to transporting the salt water along the liquid pipe 14 to the distal rotational atherectomy position.
  • the liquid pump 15 has eight moving blades 152 .
  • the pump member 15 has more buckets 152, for example, 9 or 10.
  • the number of moving vanes 152 of the liquid pump member 15 is not limited here.
  • the driving shaft 12 of the rotational grinding device 10, the rotational grinding assembly 11 and the pump liquid part 15 rotate at the same speed, and the rotational speed is obtained by the driving assembly 17.
  • the driving assembly 17 in this embodiment can be an electric motor or a pneumatic motor. It only needs to be able to drive the drive shaft 12 to rotate.
  • the driving assembly 17 drives the rotational grinding assembly 11 in a rotational speed range of 1000rad/min-200000rad/min, such as 1000rad/min, 2000rad/min, 5000rad/min, 10000rad/min, 15000rad/min, 150000rad/min. min, 170000rad/min or 200000rad/min.
  • the flow rate of saline delivered from the fluid chamber 141 of the fluid tube 14 to the far end of the rotational milling device 10 ranges from 0.1 ml/min to 100 ml/min.
  • the rotational speed of the rotational grinding assembly 11 is 200,000 rad/min, and the saline flow rate generated by the rotation of the pump liquid component 15 is 50ml/min. This ensures that the rotational grinding assembly 11 performs At the same time, the effect of rotational grinding is also to effectively use salt water to wash away the wear debris produced by rotational grinding.
  • the rotational atherectomy device 20 provided in Embodiment 2 is similar to the rotational atherectomy device 10 provided in Embodiment 1.
  • the rotational atherectomy device 20 includes a rotational atherectomy component 21, a drive shaft 22, a guide wire 23, a fluid-passing Pipe 24, pump liquid parts 25, liquid inlet pipeline 26 and drive assembly 27.
  • the guide wire 23 is not a necessary structure.
  • the guidewire 23 passes through the rotational atherectomy assembly 21 and the drive shaft 22.
  • the drive shaft 22 and The rotational atherectomy assembly 21 can move axially along the guide wire 23 , and the drive shaft 22 and the rotational atherectomy assembly 21 can rotate around the guide wire 23 .
  • the pump liquid component 25 and the drive shaft 22 are not coaxial.
  • the rotational atherectomy device 20 includes a transmission mechanism, through which the pump liquid component 25 and the drive shaft 22 are connected.
  • the shaft 22 is connected by transmission.
  • the drive shaft 22 can drive the pump liquid part 25 to rotate through the transmission mechanism, so that when the rotational grinding head located at the far end of the drive shaft 22 performs rotational grinding operations, the pump The liquid component 25 can transport saline toward the distal end through the liquid tube 24 to the rotational atherectomy position.
  • the transmission mechanism connects the pump fluid component 25 and the drive shaft 22, when the drive shaft 22 increases in speed, the pump fluid component 25 also increases in speed to increase the flow of salt water that washes away the wear particles and reduce the high-speed rotation of the rotary grinding head.
  • the resulting temperature rise causes thermal damage to vascular tissue and blood, avoiding complications such as slow blood flow/no reflow.
  • the transmission mechanism includes but is not limited to a gear transmission assembly.
  • the gear transmission assembly includes a driving wheel 28 and a driven wheel 29 that mesh with each other.
  • the driving wheel 28 is connected to the drive shaft 22, from which The moving wheel 29 is connected with the pump fluid component 25 .
  • the driven wheel 29 is connected to the pump fluid component 25 through a transmission shaft.
  • the driving wheel 28 engages and drives the driven wheel 29 to rotate, so that the driven wheel 29 drives the pump fluid component 25 to rotate through the transmission shaft.
  • the transmission ratio between the driving wheel 28 and the driven wheel 29 is greater than 1, so that when the drive shaft 22 rotates, the driven wheel 29 can transmit as much torque as possible to the pump fluid component 25 through the drive shaft, so that the pump fluid can
  • the member 25 has enough thrust to transport the saline to the rotational grinding position through the liquid pipe 24.
  • the transmission ratio between the driving wheel 28 and the driven wheel 29 can be specifically from 1.1:1 to 3:1.
  • the transmission ratio between the driving wheel 28 and the driven wheel 29 may also be less than or equal to 1.
  • the transmission ratio between the driving wheel 28 and the driven wheel 29 is equal to 1, the driving shaft 22 rotates.
  • the pump fluid component 25 always maintains the same rotation speed as the drive shaft 22 .
  • the transmission ratio between the driving wheel 28 and the driven wheel 29 is less than 1, during the rotation of the driving shaft 22, the pump liquid component 25 can inject salt water into the liquid pipe 24 at a speed greater than that of the driving shaft 22, thereby effectively increasing the scouring and milling process. Brine flow rate of crumb particles.
  • the gear transmission assembly is not limited to the structure in which the driving wheel 28 and the driven wheel 29 mesh.
  • the gear transmission assembly also includes at least one intermediate gear, and the intermediate gear is meshed between the driving wheel 28 and the driven wheel 29 . so that there is a suitable transmission ratio between the driving wheel 28 and the driven wheel 29.
  • the transmission mechanism may be a turbine-worm transmission structure.
  • the transmission mechanism includes a meshing turbine and a worm, wherein the worm is coaxially connected to the drive shaft 22 , so that when the drive shaft 22 rotates, the worm drives The turbine turns.
  • the torque of the drive shaft 22 can be transmitted to the pump fluid component 25 by means of the worm of the transmission mechanism driving the turbine, so as to realize the transmission connection between the drive shaft 22 and the pump fluid component 25 .
  • the liquid pump member 25 includes a plurality of blades 251, and the plurality of blades 251 are connected to the turbine, so that when the worm drives the turbine to rotate, the blades 251 located on the turbine also rotate together, thereby realizing the delivery of salt water through the liquid pipe 24. To the position of rotational grinding, wash away the abrasive debris generated during the rotational grinding process.
  • the rotation axis of the pump fluid component 25 does not coincide with the drive shaft 22 , for example, they are parallel and spaced apart from each other.
  • the liquid passage chamber 241 for disposing the pump liquid component 25 does not coincide with the drive shaft 22 .
  • an independent liquid passage chamber 241 is formed by using the liquid passage pipe 24 sleeved outside the drive shaft 22.
  • the liquid passage pipe 24 It includes at least 2 lumens that are separated from each other.
  • the liquid pipe 24 includes 2 lumens. As shown in FIG.
  • one of the two lumens is used as the liquid lumen 241 for transporting saline, and the other one is used as the liquid pipe 241. It can be used as a guide cavity 242 for the drive shaft 22 .
  • the drive shaft 22 has good stability when it moves in the axial direction under the guidance of the guide cavity 242 .
  • the liquid pump member 25 includes a plurality of oblique blades 251 .
  • the surface of the blades 251 is inclined rather than perpendicular to the axial direction of the liquid pump member 25 , similar to the blades of a fan.
  • the blade 251 rotates, it can increase the flow rate of the liquid in the liquid passage chamber 241 .
  • the flow direction of the salt water driven by the pump fluid component 25 is related to the rotation direction of the pump fluid component 25. Therefore, the adjustment of the salt water flow direction can be achieved by controlling the rotation direction of the drive shaft 22.
  • the number of blades 251 of the liquid pump member 25 can be specifically 4, 2, or 3.
  • the number of blades 251 is not limited here.
  • the rotational speed of the driving shaft 22 is 200000 rad/min.
  • the rotation speed of the pump liquid part 25 is 20000rand/min.
  • the brine generated by the rotation of the pump liquid part 25 is The flow rate is 30ml/min.
  • the rotation speed of the drive shaft 22 and the rotation speed of the pump fluid component 25 can be other values.
  • the rotation speed of the drive shaft 22 It is 150000rad/min to 250000rad/min, and the rotation speed of the pump fluid part 25 is 1/10 to 1/2 of the rotation speed of the drive shaft 22. No limitation is made here.
  • the driving component 27 can also be an electric motor or a pneumatic motor, which is not limited here.
  • first and second are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. . Therefore, features defined as “first” and “second” may explicitly or implicitly include at least one of these features.
  • “plurality” means at least two, such as two, three, etc., unless otherwise expressly and specifically limited.
  • connection can be a fixed connection or a detachable connection.
  • Connection, or integration can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary; it can be an internal connection between two elements or an interaction between two elements, unless There are clear limitations. For those of ordinary skill in the art, specific Please understand the specific meanings of the above terms in this application.
  • a first feature being "on” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. touch.

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  • Surgery (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biomedical Technology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Engineering & Computer Science (AREA)
  • Vascular Medicine (AREA)
  • Heart & Thoracic Surgery (AREA)
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Abstract

一种旋磨装置(10)，包括旋磨组件(11)、驱动轴(12)、通液管(14)和泵液件(15)，驱动轴(12)的远端与旋磨组件(11)相连接，并用于带动旋磨组件(11)转动，通液管(14)套设于驱动轴(12)，且通液管(14)具有通液腔(141)，泵液件(15)与驱动轴(12)传动连接，且能够在驱动轴(12)的带动下经通液腔(141)朝通液管(14)的远端输送液体。

Description

旋磨装置
相关申请
本申请要求于2022年06月20日申请的，申请号为2022106965671、名称为“旋磨装置”的中国专利申请的优先权，在此将其全文引入作为参考。
技术领域
本申请涉及医疗器械技术领域，特别是涉及一种旋磨装置。
背景技术
动脉粥样硬化斑块一般位于冠状动脉或外周动脉的脉管系统，根据斑块的质地可能有不同的特征。对于严重钙化病变需要使用动脉粥样硬化切除装置预处理，其原理是通过旋磨装置在血管病变处高速旋转磨削，祛除钙化或纤维化的动脉硬化斑块，开通斑块堵塞的血管，获得扩大的光滑的血管内腔，方便后续支架的植入。
在旋磨装置进行旋磨操作时，旋磨导管主要通过驱动轴带动旋磨头高速旋转，向前推进接触并磨削祛除病变。由于磨削病变过程中会产生热量，为减少对血管组织和血液造成热损伤，需要在旋磨过程中输注冷却液(如盐水)冷却和冲刷产生的磨屑微粒。
然而，相关技术的旋磨装置主要通过加压袋或输液泵将储液袋内的冷却液输送灌注到导管的远端，起到冷却和冲刷产生的磨屑微粒的作用，但是无法根据实际旋磨情况及时有效地调节冷却液的灌注流量。
发明内容
基于此，提供一种旋磨装置，以解决无法及时有效地调节冷却液的灌注流量的问题。
本申请提供一种旋磨装置，包括：
旋磨组件；
驱动轴，所述驱动轴的远端与所述旋磨组件相连接，并用于带动所述旋磨组 件转动；
通液管，套设于所述驱动轴，且所述通液管具有通液腔；
泵液件，与所述驱动轴传动连接，且能够在所述驱动轴的带动下经所述通液腔朝所述通液管的远端输送液体。
附图说明
为了更清楚地说明本申请实施例或传统技术中的技术方案，下面将对实施例或传统技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据公开的附图获得其他的附图。
图1为实施例1的旋磨装置的结构示意图；
图2为实施例1的旋磨装置在泵液件处的横截面结构示意图；
图3为实施例1的旋磨装置的泵液件的一种实施方式的结构示意图；
图4为实施例2的旋磨装置的结构示意图；
图5为实施例2的旋磨装置在泵液件处的横截面结构示意图。
具体实施方式
为使本申请的上述目的、特征和优点能够更加明显易懂，下面结合附图对本申请的具体实施方式做详细的说明。在下面的描述中阐述了很多具体细节以便于充分理解本申请。但是本申请能够以很多不同于在此描述的其它方式来实施，本领域技术人员可以在不违背本申请内涵的情况下做类似改进，因此本申请不受下面公开的具体实施例的限制。
需要说明的是，当元件被称为“固定于”或“设置于”另一个元件，它可以直接在另一个元件上或者也可以存在居中的元件。当一个元件被认为是“连接”另一个元件，它可以是直接连接到另一个元件或者可能同时存在居中元件。
术语“垂直的”、“水平的”、“上”、“下”、“左”、“右”以及类似的表述只是为了说明的目的，并不表示是唯一的实施方式。
需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、 “厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“顺时针”、“逆时针”、“轴向”、“径向”、“周向”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。
在本申请实施方式中，近端为医疗器械的靠近操作者(如医生)的一端，远端为医疗器械的远离操作者的一端。
本申请提供一种旋磨装置，包括：
旋磨组件；
驱动轴，所述驱动轴的远端与所述旋磨组件相连接，并用于带动所述旋磨组件转动；
通液管，套设于所述驱动轴，且所述通液管具有通液腔；
泵液件，与所述驱动轴传动连接，且能够在所述驱动轴的带动下经所述通液腔朝所述通液管的远端输送液体。
在其中一个实施例中，所述驱动轴穿设于所述通液腔，所述泵液件同轴设置在所述驱动轴上。
在其中一个实施例中，所述泵液件具有至少一个轴向凹槽，所述轴向凹槽使得所述泵液件的周侧形成至少一个动叶，所述动叶用于在所述泵液件转动时沿所述通液腔朝所述通液管的远端输送液体。
在其中一个实施例中，所述动叶的外径尺寸由近端向远端逐渐增大。
在其中一个实施例中，所述通液管包括与所述通液腔彼此隔开的引导腔，所述驱动轴穿设于所述引导腔，并通过传动机构与所述泵液件传动连接。
在其中一个实施例中，所述传动机构包括齿轮传动组件，所述齿轮传动组件包括相互啮合的主动轮和从动轮，所述主动轮与所述驱动轴相连接，所述从动轮与所述泵液件相连接。
在其中一个实施例中，所述齿轮传动组件包括至少一个中间齿轮，所述中间齿轮啮合设置在所述主动轮和所述从动轮之间。
在其中一个实施例中，所述主动轮和所述从动轮之间的传动比大于1。
在其中一个实施例中，所述主动轮和所述从动轮之间的传动比为1.1：1至3：1。
在其中一个实施例中，所述传动机构包括相啮合的涡轮和蜗杆，所述蜗杆与所述驱动轴同轴连接，所述泵液件包括多个叶片，多个所述叶片连接于所述涡轮，以在所述蜗杆驱使所述涡轮转动时，所述涡轮带动多个所述叶片转动。
在其中一个实施例中，所述叶片所在面与所述泵液件的轴向呈倾斜设置。
在其中一个实施例中，所述泵液件的旋转轴线与所述驱动轴平行且彼此间隔。
在其中一个实施例中，所述旋磨装置包括进液管路，所述进液管路与所述通液腔相连通。
在其中一个实施例中，所述旋磨装置包括驱动组件，所述驱动组件连接于所述驱动轴的近端，并用于带动所述驱动轴转动。
在其中一个实施例中，所述驱动组件为电动马达或气动马达。
在其中一个实施例中，所述旋磨装置包括导丝，所述导丝穿设于所述驱动轴和旋磨组件，所述驱动轴和所述旋磨组件能够沿所述导丝轴向移动且能够绕所述导丝旋转运动。
在其中一个实施例中，所述旋磨组件包括旋磨头，所述旋磨头的至少部分表面覆盖研磨颗粒。
在其中一个实施例中，所述研磨颗粒包括金刚石颗粒。
实施例1
如图1，该旋磨装置10包括旋磨组件11、驱动轴12、导丝13、通液管14、泵液件15、进液管路16和驱动组件17。
旋磨组件11连接在驱动轴12的远端，导丝13穿设于旋磨组件11和驱动轴12，驱动轴12和旋磨组件11能够沿导丝13上轴向移动，且驱动轴12和旋磨组件11能够绕导丝13旋转运动。在一些实施方式中，在进行旋磨作业时，可以通过操作驱动轴12和旋磨组件11沿导丝13前后移动，其中，轴向移动指的是沿导丝13朝远端和近端移动，从而对管腔(如血管)需要旋磨的位置进行旋 磨，以疏通管腔。
在一些实施方式中，旋磨组件11包括旋磨头，其中，旋磨头的至少部分表面覆盖研磨颗粒，研磨颗粒包括但不限于金刚石颗粒，从而旋磨头在随驱动轴12转动过程中，能够获得良好的旋磨效果。
需要说明的是，在旋磨组件11进行旋磨时，导丝13并非必要的结构，可以省去。
进液管路16用于输入冷却液，冷却液包括但不限于盐水。
下文为便于描述，以冷却液为盐水为例进行说明。
进液管路16与通液管14相通，盐水通过通液管14的通液腔141输送到远端流出，冲刷旋磨产生的微粒并带走旋磨产生的热量，以减少旋磨组件11旋转导致的温度上升和引起的血管组织和血液造成热损伤，避免慢血流/无复流等并发症。
泵液件15为能够泵送液体的元件，具体地，泵液件15与驱动轴12传动连接，泵液件15能够在驱动轴12的带动下转动，以实现泵送液体。
具体地，驱动组件17与驱动轴12连接，在驱动组件17驱动下，驱动轴12带动泵液件15和旋磨组件11旋转。该实施方式中，泵液件15同轴设置在驱动轴12上，从而驱动轴12在驱动组件17的带动下转动时，泵液件15会随着驱动轴12一起转动。可理解地，通过控制泵液件15的转速来控制盐水流量，由于泵液件15和驱动轴12的动力来源均为驱动组件17，从而该旋磨装置10能够实现随驱动轴12的转速的变化改变输送至旋磨装置10的远端的盐水量。确切的说，由于泵液件15同轴设置在驱动轴12上，从而随驱动轴12的转速增加，泵液件15增加远端传输灌注的盐水量，从而可以增加盐水流量，以冲刷旋磨组件11旋磨过程中产生的磨屑微粒，并减少旋磨组件11旋转导致的温度上升和引起的血管组织和血液造成热损伤，避免慢血流/无复流等并发症。
需要说明的是，如图2所示，由于泵液件15同轴设置在驱动轴12上，且可转动地设置在通液管14中，从而驱动轴12的外壁与通液管14的内壁之间形成通液腔141，以便驱动轴12带动泵液件15转动时，通液腔141即可以将盐水输送至旋磨装置10的远端，以对旋磨产生的磨屑进行冲刷，同时，也可以将驱 动轴12转动过程中产生的热量带走，对驱动轴12进行降温，以减少旋磨组件11旋转导致的温度上升和引起的血管组织和血液造成热损伤，避免慢血流/无复流等并发症。
在旋磨装置10的驱动轴12穿设有导丝13的实施方式中，泵液件15随驱动轴12转动过程中，泵液件15的旋转轴线与导丝13重合，换言之，泵液件15绕导丝13旋转。其中，泵液件15的旋转轴线为泵液件15旋转时所绕的轴线。
需要说明的是，通液管14可以为一个管件，也可以为多段管件结合形成。例如，参阅图1所示，可以将通液管14的与泵液件15相对应的部分的直径相对其他部分设置得较大些，以利于泵液件15的安装。
结合图2和图3所示，泵液件15具有至少一个轴向凹槽151，轴向凹槽151使得泵液件15的周侧形成至少一个动叶152。泵液件15转动过程中，动叶152推动盐水沿通液腔141朝通液管14的远端输送，最终使得盐水从通液管14的远端输出。该实施方式中，通液管14的远端位于旋磨位置，确切的说，旋磨组件11旋磨过程中产生的磨屑能够被通液管14所输出的盐水冲刷。
进一步地，动叶152的外径尺寸由近端向远端逐渐增大。该实施方式中，盐水可通过通液腔141流经动叶152的表面，泵液件15的动叶152的远端的直径越大，旋转线速度越大，带动液体流速更高。根据伯努利原理，泵液件15的远端流速大处液体压力小，泵液件15近端流速小处液体压力大，在压力差的作用下，液体从近端向远端加速流动。因此，采取这种泵液件15，可以提升盐水的输送性能，有利于将盐水沿通液管14输送至远端的旋磨位置。
需要特别说明的是，这种泵液件15结构下，无论泵液件15正转还是反转，盐水始终沿通液管14朝远端流动，因此，在旋磨过程中，盐水流量随涡轮转速的增加而增大，而不受泵液件15的转动方向影响。
如图3所示，泵液件15具有8个动叶152。在一些实施方式中，泵液件15具有更多的动叶152，例如，9个或10个。对于泵液件15的动叶152数量，在此不做限定。
旋磨装置10的驱动轴12、旋磨组件11和泵液件15的旋转速度一致，转速由驱动组件17获得，本实施例的驱动组件17可以为电动马达或气动马达，只 要能够带动驱动轴12转动即可。
在一些实施方式中，驱动组件17驱动旋磨组件11的转速范围为1000rad/min-200000rad/min，比如为1000rad/min、2000rad/min、5000rad/min、10000rad/min、15000rad/min、150000rad/min、170000rad/min或200000rad/min。泵液件15旋转时，从通液管14的通液腔141输送到旋磨装置10的远端的盐水流量范围为0.1ml/min-100ml/min。优选地，驱动组件17驱动旋磨组件11转档时，旋磨组件11的转速为200000rad/min，泵液件15旋转所产生的盐水流量为50ml/min，这样即确保了旋磨组件11进行旋磨的效果，同时，也有效地利用盐水对旋磨产生的磨屑进行冲刷。
实施例2
如图4所示，实施例2提供的一种该旋磨装置20与实施例1提供的旋磨装置10相似，旋磨装置20包括旋磨组件21、驱动轴22、导丝23、通液管24、泵液件25、进液管路26和驱动组件27。
导丝23并非必要的结构，在旋磨装置20包括导丝23的实施方式中，结合图4和图5所示，导丝23穿设于旋磨组件21和驱动轴22，驱动轴22和旋磨组件21能够沿导丝23轴向移动，且驱动轴22和旋磨组件21能够绕导丝23旋转运动。
与实施例1相比，实施例2的旋磨装置20中，泵液件25与驱动轴22不同轴，具体地，旋磨装置20包括传动机构，通过传动机构使得泵液件25与驱动轴22传动连接，这种结构设置下，驱动轴22转动时，驱动轴22能够经传动机构带动泵液件25转动，从而位于驱动轴22的远端的旋磨头进行旋磨作业时，泵液件25能够将盐水经通液管24朝远端输送至旋磨位置。
由于传动机构将泵液件25和驱动轴22传动连接，从而驱动轴22增速时，泵液件25也随着一起增速，以增加冲刷磨屑微粒的盐水流量，减少旋磨头高速旋转导致的温度上升和引起的血管组织和血液造成热损伤，避免慢血流/无复流等并发症。
在一些实施方式中，传动机构包括但不限于齿轮传动组件，例如，齿轮传动组件包括相互啮合的主动轮28和从动轮29，主动轮28与驱动轴22相连接，从 动轮29与泵液件25相连接。优选地，从动轮29通过传动轴与泵液件25相连接，在驱动轴22转动时，主动轮28啮合传动从动轮29转动，从而使得从动轮29经传动轴带动泵液件25转动。
进一步地，主动轮28和从动轮29之间的传动比大于1，从而在驱动轴22转动时，从动轮29能够经传动轴向泵液件25传递尽可能大的转矩，以使得泵液件25具有足够大推力将盐水经通液管24输送至旋磨位置。主动轮28和从动轮29之间的传动比具体可以为1.1：1至3：1。
在一些实施方式中，主动轮28和从动轮29之间的传动比也可以为小于或等于1，其中，当主动轮28和从动轮29之间的传动比等于1时，则驱动轴22转动过程中，泵液件25始终保持与驱动轴22相同的转速。当主动轮28和从动轮29之间的传动比小于1时，则驱动轴22转动过程中，泵液件25可以以大于驱动轴22的转速向通液管24注入盐水，从而有效增加冲刷磨屑微粒的盐水流量。
需要说明的是，齿轮传动组件不限于主动轮28和从动轮29相啮合的结构，在一些实施方式中，齿轮传动组件还包括至少一个中间齿轮，中间齿轮啮合设置在主动轮28和从动轮29之间，使得主动轮28和从动轮29之间具有合适传动比。
在一些实施方式中，传动机构可以是涡轮-蜗杆传动结构，具体地，传动机构包括相啮合的涡轮和蜗杆，其中，蜗杆与驱动轴22同轴连接，从而在驱动轴22转动时，蜗杆带动涡轮转动。该实施方式中，可以借助传动机构的蜗杆对涡轮的驱动将驱动轴22的扭矩传动至泵液件25，以实现驱动轴22与泵液件25的传动连接。具体地，泵液件25包括多个叶片251，多个叶片251连接于涡轮，从而蜗杆驱使涡轮转动时，位于涡轮上的叶片251也随着一起转动，从而实现将盐水经通液管24输送至旋磨位置，以对旋磨过程产生的磨屑为例进行冲刷。
需要说明的是，采取传动机构使得泵液件25随驱动轴22转动的实施方式中，泵液件25的旋转轴线与驱动轴22不重合，例如，两者之间平行且彼此间隔。相应地，用于设置泵液件25的通液腔241与驱动轴22不重合。具体地，利用套设在驱动轴22外的通液管24形成独立的通液腔241，确切的说，通液管24 包括至少2个彼此隔开的管腔，以通液管24包括2个管腔为例，结合图5所示，2个管腔中的一个作为通液腔241，用于输送盐水，另一个可以作为驱动轴22的引导腔242，驱动轴22在该引导腔242的引导下沿轴向移动时具有良好的稳定性。
结合图5所示，泵液件25包括多个斜向的叶片251，确切的说，叶片251所在面与泵液件25的轴向呈倾斜而非垂直，类似风扇的扇叶。叶片251在旋转时能够增加通液腔241中液体的流量。该实施方式中，泵液件25所驱动的盐水的流向与泵液件25的旋转方向有关，因此，可以通过控制驱动轴22的旋转方向来实现对盐水流向的调整。
泵液件25的叶片251的数量具体可以为4个，也可以为2个或3个，对于叶片251的数量，在此不做限定。
在一些实施方式中，驱动轴22的转速为200000rad/min，驱动轴22通过传动机构带动泵液件25进行转动时，泵液件25的转速为20000rand/min，泵液件25旋转产生的盐水流量为30ml/min。需要说明的是，在其他实施方式中，驱动轴22的转速及泵液件25的转速可以为其他值，例如，驱动轴22通过传动机构带动泵液件25进行转动时，驱动轴22的转速为150000rad/min至250000rad/min，泵液件25的转速为驱动轴22的转速的1/10至1/2。在此不做限定。
实施例2中，驱动组件27也可以采取电动马达或气动马达，在此不做限定。
需要说明的是，在本申请的实施方式中，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。在本申请的描述中，“多个”的含义是至少两个，例如两个，三个等，除非另有明确具体的限定。
在本申请中，除非另有明确的规定和限定，术语“安装”、“相连接”、“连接”、“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接；可以是直接相连接，也可以通过中间媒介间接相连接，可以是两个元件内部的连通或两个元件的相互作用关系，除非另有明确的限定。对于本领域的普通技术人员而言，可以根据具体 情况理解上述术语在本申请中的具体含义。
在本申请中，除非另有明确的规定和限定，第一特征在第二特征“上”或“下”可以是第一和第二特征直接接触，或第一和第二特征通过中间媒介间接接触。
以上实施例的各技术特征可以进行任意的组合，为使描述简洁，未对上述实施例中的各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。
以上实施例仅表达了本申请的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对申请专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本申请构思的前提下，还可以做出若干变形和改进，这些都属于本申请的保护范围。因此，本申请专利的保护范围应以所附权利要求为准。

Claims (18)

  1. 一种旋磨装置，其特征在于，包括：
    旋磨组件；
    驱动轴，所述驱动轴的远端与所述旋磨组件相连接，并用于带动所述旋磨组件转动；
    通液管，套设于所述驱动轴，且所述通液管具有通液腔；
    泵液件，与所述驱动轴传动连接，且能够在所述驱动轴的带动下经所述通液腔朝所述通液管的远端输送液体。
  2. 根据权利要求1所述的旋磨装置，其特征在于，所述驱动轴穿设于所述通液腔，所述泵液件同轴设置在所述驱动轴上。
  3. 根据权利要求2所述的旋磨装置，其特征在于，所述泵液件具有至少一个轴向凹槽，所述轴向凹槽使得所述泵液件的周侧形成至少一个动叶，所述动叶用于在所述泵液件转动时沿所述通液腔朝所述通液管的远端输送液体。
  4. 根据权利要求3所述的旋磨装置，其特征在于，所述动叶的外径尺寸由近端向远端逐渐增大。
  5. 根据权利要求1所述的旋磨装置，其特征在于，所述通液管包括与所述通液腔彼此隔开的引导腔，所述驱动轴穿设于所述引导腔，并通过传动机构与所述泵液件传动连接。
  6. 根据权利要求5所述的旋磨装置，其特征在于，所述传动机构包括齿轮传动组件，所述齿轮传动组件包括相互啮合的主动轮和从动轮，所述主动轮与所述驱动轴相连接，所述从动轮与所述泵液件相连接。
  7. 根据权利要求6所述的旋磨装置，其特征在于，所述齿轮传动组件包括至少一个中间齿轮，所述中间齿轮啮合设置在所述主动轮和所述从动轮之间。
  8. 根据权利要求6所述的旋磨装置，其特征在于，所述主动轮和所述从动轮之间的传动比大于1或等于1。
  9. 根据权利要求6所述的旋磨装置，其特征在于，所述主动轮和所述从动轮之间的传动比为1.1：1至3：1。
  10. 根据权利要求5所述的旋磨装置，其特征在于，所述传动机构包括相啮 合的涡轮和蜗杆，所述蜗杆与所述驱动轴同轴连接，所述泵液件包括多个叶片，多个所述叶片连接于所述涡轮，以在所述蜗杆驱使所述涡轮转动时，所述涡轮带动多个所述叶片转动。
  11. 根据权利要求10所述的旋磨装置，其特征在于，所述叶片所在面与所述泵液件的轴向呈倾斜设置。
  12. 根据权利要求5所述的旋磨装置，其特征在于，所述泵液件的旋转轴线与所述驱动轴平行且彼此间隔。
  13. 根据权利要求1所述的旋磨装置，其特征在于，包括进液管路，所述进液管路与所述通液腔相连通。
  14. 根据权利要求1所述的旋磨装置，其特征在于，包括驱动组件，所述驱动组件连接于所述驱动轴的近端，并用于带动所述驱动轴转动。
  15. 根据权利要求14所述的旋磨装置，其特征在于，所述驱动组件为电动马达或气动马达。
  16. 根据权利要求1所述的旋磨装置，其特征在于，包括导丝，所述导丝穿设于所述驱动轴和旋磨组件，所述驱动轴和所述旋磨组件能够沿所述导丝轴向移动且能够绕所述导丝旋转运动。
  17. 根据权利要求1所述的旋磨装置，其特征在于，所述旋磨组件包括旋磨头，所述旋磨头的至少部分表面覆盖研磨颗粒。
  18. 根据权利要求17所述的旋磨装置，其特征在于，所述研磨颗粒包括金刚石颗粒。
PCT/CN2023/099612 2022-06-20 2023-06-12 旋磨装置 WO2023246539A1 (zh)

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CN114948107A (zh) * 2022-06-20 2022-08-30 上海微创旋律医疗科技有限公司 旋磨装置

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CN113288334A (zh) * 2021-05-28 2021-08-24 福州大学 基于钙化组织去除、回收及降温一体化的心血管介入手术装置的工作方法
CN113855165A (zh) * 2021-11-11 2021-12-31 上海融脉医疗科技有限公司 一种机械血栓切除导管装置
CN216455184U (zh) * 2021-12-02 2022-05-10 贵州梓锐科技有限公司 一种手术用磨头
CN216535426U (zh) * 2021-12-02 2022-05-17 贵州梓锐科技有限公司 一种手术用冷却磨头
CN114948107A (zh) * 2022-06-20 2022-08-30 上海微创旋律医疗科技有限公司 旋磨装置
CN217793252U (zh) * 2022-06-20 2022-11-15 上海微创旋律医疗科技有限公司 旋磨装置

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CN107224313A (zh) * 2016-03-26 2017-10-03 雷克斯医疗公司 斑块去除装置
CN211132606U (zh) * 2019-08-01 2020-07-31 杨礼瑾 动力源可置于人体内的旋转传动导管
CN113288334A (zh) * 2021-05-28 2021-08-24 福州大学 基于钙化组织去除、回收及降温一体化的心血管介入手术装置的工作方法
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CN216455184U (zh) * 2021-12-02 2022-05-10 贵州梓锐科技有限公司 一种手术用磨头
CN216535426U (zh) * 2021-12-02 2022-05-17 贵州梓锐科技有限公司 一种手术用冷却磨头
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